Cylinder misfire -- wet spark plug. Valve cover replace?

nknight

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City
Arden Hills
State
MN
Country
United States
What I Drive
2014 XC90 3.2 AWD
#1
Hi -

I've had a persistent misfire issue on cylinder 6 (PO306). Now it looks like I'm getting misfires on cylinders 4 and 5, as well as the random misfire code (P0300). When I pulled the spark plug last night, there was some oil on the threads. Does that mean that the valve cover or spark plug o-ring is leaking? Is that hard to replace (do I have to remove the timing belt cover as well?). Or would it be something else?

Thanks!
 
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City
Keizer
State
OR
Country
United States
What I Drive
2004 Volvo XC90 2.5T AWD
#2
Hello, hopefully you got your misfire issues resolved. If you're mechanically inclined and watch YouTube, it isn't hard, just time consuming...if you're already in there to do plugs, just do the valve cover seals and o rings.
 
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